Unit 4 Amazing science句式精讲精练句式精讲1.It’s made of metal.be made of 意为“由……制成”。例如：The desk is made of wood. 这张桌子是由木头制成的。【拓展】短语含义用法be made of由……制成强调由制成品能看出原材料be made from强调由制成品一般看不出或难以分辨出原材料be made in在（某地）制造强调物品的产地例如： These bottles are made of glass.这些瓶子是由玻璃制成的。 Wine is made from grapes. 红酒是葡萄酿的。 This car is made in Tianjin. 这辆车是在天津制造的。2.I hope your dream will come true.come true意为“（理想、梦想等）实现”。come作系动词，表示“变得”，其后常接一些表示好的、积极的形容词，如：true; right等。 Your dream will come true if you work hard. 如果你努力工作，你的梦想会实现的。【拓展】辨析：come true与realize come true和realize均可表示“实现”之意，但come true的主语常是物或事，如：愿望、梦想、目标等。realize是及物动词，其主语常是人。例如： His wish to be an actor has come true. 他想当演员的愿望实现了。 She realized her dream finally. 她最终实现了她的梦想。 3.It is used for sending satellites or spaceships into space.be used for 意思是“被用来做某事”，for是介词，它的后面用名词或者动名词作宾语。例如：Knives are used for cutting things. 刀是用来割东西。【拓展】（1）be used as意思是“被作为……使用”，as是介词，意思是“作为”，它强调被当作工具或者手段来使用。例如：　Our classroom is used as a reading-room. 我们的教室被用来当阅览室使用。（2）be used by意思是“被……使用”，by后面跟人或者物，表示强调动作的使用者。例如：　This radio is often used by my mother. 这台收音机经常被我的妈妈使用。（3）be used to do something意思是“被用来做某事”，和be used for doing是同义词短语。例如：It is used for learning English.＝It is used to learn English. 它被用来学习英语的。（4）be used to doing something的意思是“习惯于做某事”。例如：　My father is used to living in the village. 我的爸爸习惯于住在乡村。4.It’s said that he invented more than two thousand things during his life.It is said是一个固定搭配的句型，it是形式主语，真正的主语是后面的that从句。它的第 1 页


！6.It was invented in 1879.句
中的was invented是invent的被动语态。（1）被动语
态的结构是：be＋及物动词的过去分词。be有人称、时态和单复数形式的变化
。各种时态
的被动语态列表：时态被动语
态的结构一般现在
时am/is/are＋过去分词一般
过去时was/were＋过去分词一般
将来时will/shall＋be＋过去分词现在
进行时am/is/are＋being＋过去分词现在
完成时have/has＋been＋过去分词过
去进行时was/were＋being＋过去分词第 2 页
思是“据说”。例如：It is said that Mary is very happy in London. （主语从句）= They say that Mary is very happy in London（宾语从句）据说玛丽在伦敦是非常幸福的。【拓展】另外类似的句型有：It is believed that…（人们相信），It is reported that …（据报道），It issupposed that （据猜测）。例如：It is believed that on December 21st, 1981, the first basketball game in history was played. 人们相信历史上首次篮球比赛是在1891年12月21日举行的。It is supposed that there is no life on the moon.据推测月球上是没有生命的。It is reported that another earth satellite has been put into orbit. 据报道又有一颗卫星上天了。5.I wish I could go into space some day.wish作动词，意为“希望；期待”。wish后接 that从句表示愿望，且从句的谓语动词要用虚拟语气。例如：I wish I were a bird. 我希望我是只小鸟。【拓展】辨析：hope与wish（1）相同点：表示“想；希望”，宾语可为to do,不能用doing。例如：I hope/wish to visit Guilin. 我希望去桂林观光。 （2）不同点：wish后可以跟复合宾语，即wish sb. to do sth.，而hope不能。例如： I wish you to go. (正) 我希望你去。 I hope you to go. (误) 我希望你去。（3）两者都可接that从句，但是“hope + that从句”表示希望，“wish + that从句”表示愿望，且从句的谓语动词要用虚拟语气。例如：I hope you’ll be better soon. 我希望你很快好起来。I wish I were really wealthy. 但愿我真的富有。（4）wish后可接双宾语。例如：We wish you a happy New Year! 我们祝你新年快乐


去将来时would/should＋be＋过去分词过
去完成时had＋been＋过去分词（2）被动语
态的用法：1）不
知道谁是动作的执行者的时候用被动语态。例如：My bike was stolen last night. 我的
自行车昨天晚上被偷了。2） 强调和
突出动作的承受者的时候用被动语态。例如：The blackboard has been cleaned. 黑板已
经被擦了。3）没有
必要指出动作的执行者的时候用被动语态。例如：The Great Wall was built thousands of years ago. 长城
是数千年前建成的。7.China is the third nation that sent a person into space.China is the third nation that sent a person into space.为含有定语从句的复合句，that sent aperson into space为定语从句，
修饰先行词the third nation，that为关系代词，在定语从句
中作主语。【拓展】在复合句
中，修饰某一名词或代词的从句叫做定语从句。被定语从句修饰的词叫做先行词。定语从句
必须放在先行词之后。引导定语从句的关联词有关系代词that，who，which等和
关系副词when，where，why等，且定语从句的关联词在从句中充
当一定的成分，从句中谓语动词的时态及单复数要和它所修饰的先行词保持一致。例如：This is the present that he gave me for my birthday. Do you know everybody who came to the party?I still remember the night when I first came to the village. This is the place where Chairman Mao once lived.句式精练I. 句型
转换，按要求完成下列句子。1. We can finish the work in two days. (变为被动语
态)The work _____ _____ _____ in two days.2. They produce silk in Suzhou. (变为被动语
态)Silk ____ ____ in Suzhou.3. The children will sing an English song. (变为被动语
态)An English song ____ ____ ___ by the children. 4. Mum asked Mary to show me her new dictionary. (变为被动语
态)Mary ____ ____ ____show me her new dictionary.5. The desk is used for putting a computer on. (变为主动语
态) We use the desk ____ ____ a computer on.6. This kite was made by my father for my birthday. (变为主动语
态) My father ____ ____ ____ ____ my birthday.7. Finally, the girl realized her dream in China. (改
为同义句)Finally, the girl’s dream ____ ____ in China.8. The house was built in 2019. (对划线部
分提问)____ ____the house ____?9. We planted many trees and flowers in our school last year. (用next year 改写
句子)Many trees and flowers ____ ____ ____ in our school next year.第 3 页
过


态) 3 units ____ ____ ____ by now.II. 根
据汉语提示，完成句子。1. 毫无疑问
，由于计算机的出现，我们的世界正变得越来越小。There’s _____ _____ that our world is becoming _____ and _____ because of the appearance ofcomputers. 2. 总体
来说, 这本书值得一读。_____ _____, the book is worth _____. 3. 只要你有信
心, 就一定能取得成功。You are sure to make great success _____ _____ _____ you have confidence. 4. 为了成为一名
科学家, 她在学校努力学习。She studies hard at school _____ _____ a scientist. 5. 月球在相
隔地球38万千米的地方绕地球转。The moon goes around the earth _____ _____ _____ _____ 380, 000 km.6. 红酒是由葡萄制成的。The red wine _____ _____ _____ grapes.7. 考试结束
后把试卷交上来。_____ _____ your papers at the end of the exam.8. 据说
那名歌手是他的哥哥。_____ _____ _____ the singer is his elder brother.9. 我
已经再三地和他讲过了，他不应该依靠他的母亲。I have told him _____ _____ _____. He shouldn’t depend on his mother.10. 这
部电影是根据鲁迅的小说改编的。The movie is _____ _____ a novel by Lu Xun. III. 补全对话
。 根
据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。A: Morning, Tina. Did you enjoy your holiday in the country last week?B: Yes, I really had a lot of fun there.A: Great! 1. ?B: With some of my friends.A: 2. ? In a hotel?B: No. We camped in a mountain village. And we cooked our meals over an open fire.A: Sounds wonderful. How was the weather there?B: 3. . When we took a walk in the countryside, we met some villagers and had tea with them.A: 4. ?B: Yes. I will bring you some pictures tomorrow. By the way, what did you do last weekend?A: 5. B: Wow, pretty cool. I believe you had a great time, too.【
参考答案】I. 句型
转换，按要求完成下列句子。1. can be finished2. is produced3. will be sung第 4 页
10. We have learned 3 units by now. (变为被动语


据汉语提示，完成句子。1. no doubt; smaller; smaller2. Generally speaking/In general; reading3. as long as4. to be5. at a distance of6. is made from7. Hand in8. It’s said that9. again and again10. based onIII. 补全对话
。1. Who did you go there with /Who did you enjoy your holiday with2. Where did you stay3. It was fine/ sunny/ The weather was fine/ sunny/ very good/ not bad4. Did you take photos / pictures Did you take any/a few/many/a lot of photos / pictures5. …任何
合理的描述过去周末做过的愉快的事情。（注意时态要用一般过去时，句子结构拼写
正确。）第 5 页
4. was asked to5. for putting/to put6. made a kite for7. came true8. When was; built9. will b